Paper can



(No Model.)

G. H. BARTLETT. PAPER CAN.

No. 544.525. Patented Aug 13, 1595.

ITE STATES-f PATENT FFICE.

GEORGE H.-BARTLETT, OF SAN FRANCISCO, CALIFORNIA.

PAPER CAN.

SPECIFICATION forming part of Letters Patent No. 544,525, dated August13, 1895. Application filed October 1894- Serial No. 526d521i (Il'omodel.)

To all whom it may concern:

Be it known that I, GEORGEH. BARTLETT,

a citizen of the United States, residing in thecity and county of SanFrancisco, State of California, have invented an Improvement in PaperCans; and I hereby declare the following to be a full, clear, and exactdescription of the same.

My invention relates to improvements in the manufacture of cans.

It consists in certain details of construction, which will be more fullyexplained by reference to the accompanying drawings, in which- 1 Figurel is a vertical section through a can. Fig. 2 is a similar View showingthe attachment of a paper cap. Figs. 3 and4z show the manner of formingthe body of a rectangular or a circular can, respectively.

The object of my invention is to provide a can with complete pasteboardor paper sides and ends and a means for uniting them with the smallestamount of metal, and to reduce the expense while making a secureconstruction.

The body of the can A is made of pasteboard or other similar material,and may be of cylindrical, rectangular, or other shape, as desired.

In order to unite the meeting edges of the material forming the sides, Iemploy strips B B,which are cut out of the metal to be used and are bentby a machine so as to form grooves or channels within which the edges ofthe pasteboard are received and secured. These grooved or channeledstrips are united by solder at a point C, opposite to the open edgesinto which the pasteboard is to be secured. When the can is cylindrical,these strips are united approximately in a plane with the open channelswhich are opposite to each other. When they are to'be used for square orangular cans, these strips are united so that the channels stand atapproximately right angles from each other, and, in either case, theedges of the pasteboard being introduced into these channels, the metalis indented soas to be pressed into the material of the pasteboard andthus lock it firmly in place. By thus rolling these strips I am enabledto make them of any length, and only one thickness of metal appears uponthe outside and inside of the can. They can-be made of any desiredlength by soldering the strips together, so that long rolls can beunited in the same manner.

In order to secure the heads upon the pasteboard cylinder I take narrowstrips of metal and roll them into the form of an S in transversesection, forming two channels D D, which face in opposite directions.One of these'channels fits over the end of the canbody, asshown in thesectional view, and by means of aproper machine, which is caused totravel around upon the inside and the ontside, this channel is firmlycrimped upon the end of the can-body. The outer-periphery of the metalnow projects upwardly around the outside of the opposite channel, andthe head, being cut to the proper size, is let into this periphery,resting upon the curvature of the metal between the two channels, andthis upwardly-projec'ting edge of metal is then bent or crimped over, soas to firmly lock the pasteboard head to the ring. This method ispreferable to bending or crimping the pasteboard itself. One end ofthecan may have an opening made in it of suitable size to give access tothe interior. This opening may be fitted with a screw-cap, the permanentor fixed portion being secured in a hole in the can-head in theusual orany suitable manner by introducing the flange and crimping it so thatthe nozzle is secnred inv place.

If the can be large and it is desired to have a large opening, insteadof using a screw-cap the cap is made of a paper disk E, the periphery ofwhich is secured in a channel F made by bending a strip of metal to theproper shape and also the proper curvature for the size of the cap. Theother edge G of this strip of metal projects downward at right angleswith the cover, and this forms a flange which may fit over or within thecan-body, as desired. In

this manner the parts of the can are. united ICO are approximately flushwith and form continnations of the said edges, and means for uniting thetop and bottom of the can to the body consisting of thin strips ofbendable metal rolled in an S-form in transverse section to formoppositely facing channels for the end of the can body, While the outerperiphery of the metal strip projects upwardly around the outside of theopposite channel to receive the head, which rests upon the metal betweenthe two channels, said projecting edge being bent or crimped over saidend to securely lock the same to the body, substantially as hereindescribed.

2. As an article of manufacture, a can consisting of a cylindrical pasteboard or paper body, paper or paste board heads therefor, U shapedstrips of thin metal united together GEORGE H. BARTLETT.

VViinesses:

S. It. NoUnsn, II. F. ASCHECK.

